Graph the piecewise function,

A function must be entered into **
**in order to obtain its graph. Press the ** key. The resulting screen should look like the one below:**

If any of the
lines are not blank, move the cursor using the **UP ** or **DOWN ARROW **keys
to the line and press the **CLEAR** key. If any of **Plot1,
Plot2, or Plot3** are highlighted, that **Plot** must be
turned off before proceeding. To turn a **Plot **on or off**,
**click here to go to **Scatterplot**.

To graph the function, we enter the first part with its domain restriction in . To do this enter ** x^2 - 4(x**. Then press **2nd MATH** to get the **TEST** menu. Select **4:**. Next enter **-2)(x **.Then press **2nd MATH** to get the **TEST** menu once again. Select **6:. **Then enter **2)** . The
result should look as follows:

Now we enter the 2nd part of the function with its restriction in . Arrow down to and enter **x-2(x**. Press **2nd MATH** to get the **TEST** menu. Select **3:< **. Next enter **2) **. The screen will now look like the image below:

Now press **Zoom, **then **6**. The graph belows shows plotted in the
**VIEWING RECTANGLE** [-10,10,1] X [-10,10,1]. This standard **VIEWING RECTANGLE **is obtained by setting it manually with the
**WINDOW **key or by **ZOOM 6:ZStandard. **

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